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| author | Christian Göttsche <cgzones@googlemail.com> | 2023-08-07 12:46:40 +0200 |
|---|---|---|
| committer | Dmitry V. Levin <ldv@strace.io> | 2023-08-07 10:46:40 +0000 |
| commit | 43abfff43537092e20bc129f8208d082e73aff1a (patch) | |
| tree | 0a474a6ecf44fd9b0090d75f0f528fb9b55e62ce /modules/pam_lastlog | |
| parent | 4020ca8c0fe3ac88eccc5c62aa8d8c63a4043578 (diff) | |
| download | pam-43abfff43537092e20bc129f8208d082e73aff1a.tar.gz pam-43abfff43537092e20bc129f8208d082e73aff1a.tar.bz2 pam-43abfff43537092e20bc129f8208d082e73aff1a.zip | |
modules: cast to unsigned char for character handling function
Character handling functions, like isspace(3), expect a value
representable as unsigned char or equal to EOF. Otherwise the behavior
is undefined.
See https://wiki.sei.cmu.edu/confluence/display/c/STR37-C.+Arguments+to+character-handling+functions+must+be+representable+as+an+unsigned+char
Diffstat (limited to 'modules/pam_lastlog')
| -rw-r--r-- | modules/pam_lastlog/pam_lastlog.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/modules/pam_lastlog/pam_lastlog.c b/modules/pam_lastlog/pam_lastlog.c index ec515f56..831dbe3b 100644 --- a/modules/pam_lastlog/pam_lastlog.c +++ b/modules/pam_lastlog/pam_lastlog.c @@ -205,7 +205,7 @@ get_lastlog_uid_max(pam_handle_t *pamh) return uid_max; ep = s + strlen(s); - while (ep > s && isspace(*(--ep))) { + while (ep > s && isspace((unsigned char)*(--ep))) { *ep = '\0'; } errno = 0; |